<div style="padding: 16px;">
    <button (click)="getDataList()" style="margin-right: 16px;">异步get请求</button>
    <button (click)="sendPost()">异步post请求</button>
    <ul style="margin-top: 16px;">
        <li *ngFor="let item of dataList">{{item.title}}</li>
    </ul>
</div>
